options.Roles is unconditionally overwritten by AddOtOpcUaCluster's PostConfigure to equal
EffectiveRoles.Gossiped (T2's own structural-identity fix), so comparing options.Roles against
Gossiped could never observe a divergence — an overlay setting Cluster:Roles was silently
ignored, not fail-start. The validator now injects IConfiguration and re-reads the raw
Cluster:Roles section LIVE (reflecting any overlay applied after EffectiveRoles was first
resolved), normalized through EffectiveRoles.Resolve for reuse of its own validation.
AddOtOpcUaCluster now TryAddSingleton(configuration) so a bare ServiceCollection test harness
(not just WebApplicationBuilder) can supply IConfiguration to the validator.
Both guard tests rewritten to go through the real AddOtOpcUaCluster + PostConfigure pipeline
over a live ConfigurationManager, simulating an overlay as a second provider added AFTER
EffectiveRoles was resolved off the same object — exactly Program.cs's own sequencing. Confirmed
red beforehand: the "changes" test failed to throw against the pre-fix validator.
The default decider restarts a faulting child immediately and without limit, and
the hook makes every restart do ShutdownAsync+InitializeAsync+SubscribeAsync, so a
driver faulting on every value became a reconnect storm. Per-driver last-reprovision
stamp + DefaultReprovisionBackoff (10s, matched to DefaultReconnectInterval);
a held request is re-delivered by a single per-driver timer carrying the original
incarnation ref, so the F2 identity check still applies.
Seen RED with the backoff disabled: InitializeCount == 3 (second applied
immediately) where the test requires 2-then-3.
Also: the _children.Keys union-arm test (seeder gained taglessDrivers) and the
_desiredByDriver xmldoc note that it lingers on last-known-good after a failed apply.
T11: site-b-2 drops OTOPCUA_ROLES entirely — Cluster:Roles is its sole role source, the rig's
only node that can exhibit the two-role-authority split (01/S-12). Expected to fail every
deploy on a pre-R3-04 build.
T12: site-a-2 pins Cluster__Roles__0="Driver" (capital D) as the standing 01/C-9 case-mismatch
pin, keeping cluster-SITE-A verbatim. Pre-fix this un-elects the SITE-A Primary.
Combined into one commit (deviation from the plan's two separate T11/T12 commits): the header
comment block documenting all six nodes' role sources interleaves both nodes on adjacent lines,
so a clean split was not practical. Recorded in the plan's Execution notes.
Compose edits only — the rig is NOT brought up as part of this change.
New docs/security.md section "Mesh gRPC ingress is AllowAnonymous by design"
(archreview 03/S14): what the cookie FallbackPolicy covers, why it can block a
correctly-PSK'd call before the interceptor's verdict matters, why the
AllowAnonymous opt-out is safe (all five interceptors fail-closed), the
affected-endpoint table (fused-vs-driver-only distinction), and the two
standing guards (MeshGrpcAnonymousMetadataTests, MeshGrpcMapConventionTests)
plus the auth-stack/driver-only boundary tests.
One cross-reference line each in docs/Configuration.md (§MeshTransport,
§ConfigSource/ConfigServe) and docs/Telemetry.md, so an operator reading
about the listener ports meets the constraint where they'd look for it.
A ReprovisionRequested in flight from an old incarnation could reach the NEW child
after HandleRestartDriver swapped it in. In Connecting that child DOES handle
InitializeRequested, so it started a second concurrent InitializeAsync, racing the
#527 dispose-before-overwrite.
Seen RED: InitializeCount == 2 on a child held in Connecting by a gated init
(an already-connected child swallows InitializeRequested and passes vacuously).
MeshGrpcMapConventionTests - source-scan of Program.cs (solution-root walk,
following FlushLoggingConventionTests.cs's idiom): zero direct
MapGrpcService</MapZbLocalDbSync( occurrences, exactly one
MapOtOpcUaMeshGrpcServices( call.
Complements the endpoint-metadata census (T1-T3): the census catches a map
added to MeshGrpcEndpoints without the AllowAnonymous convention, but cannot
see a map that bypasses the helper and goes straight into Program.cs - that
shape never reaches MapOtOpcUaMeshGrpcServices at all. Verified red against
the pre-T1 Program.cs (five inline map sites, zero mapper calls) and green
against the current extracted form.
The alarm subscribe gated on 'a handle exists', which is correct for an idempotent
re-push and wrong for a deploy that widens/narrows the set. Combined with the
spawn-time desired set, a respawning deploy could latch the PREVIOUS revision's
alarm refs for the life of the connection; sourceNodeIds-filtering drivers
(OpcUaClient/AbCip/Focas) would never deliver the new alarm.
Seen RED: LastSubscribedAlarmRefs stayed [alarmX] after a deploy widening to
[alarmX, alarmY].
Security__Auth__DisableLogin: "${OTOPCUA_DISABLE_LOGIN:-true}" on central-1
and central-2 - byte-identical default behaviour, verified via `docker
compose config` both unset (resolves "true") and with
OTOPCUA_DISABLE_LOGIN=false (resolves "false").
DisableLogin's always-succeeding handler, registered under the cookie scheme
name, masks the AdminUI cookie FallbackPolicy entirely - which is exactly how
03/S14 (the FallbackPolicy blocking every mesh gRPC call on a login-enabled
admin node) survived seven phases of prior live gates that all ran with the
default. The production-faithful mode is now a one-variable flip instead of
an edit-and-remember-to-revert; header comment names the flip and the LDAP
users it needs (archreview 03/S14, R3-01 T8).
MeshGrpcDriverOnlyPipelineTests - the driver-role shape (no AddOtOpcUaAuth, no
UseAuthentication/UseAuthorization at all) behaves identically to the fused
shape's T4 positive/negative tests for NodeCommandService and
TelemetryStreamService: a correctly-keyed call succeeds, a no-key call gets
the interceptor's PermissionDenied + detail string.
Also asserts the STRUCTURAL reason it is unaffected - no
IAuthorizationPolicyProvider registered at all - so a future "register auth
everywhere for consistency" change fails this test before it ever reaches a
live site outage. Confirmed (by temporarily swapping in the pre-T2/T3 mapper)
that this class passes identically on both builds: driver-only nodes were
never exposed to 03/S14 in the first place, with or without
.AllowAnonymous().
Extends MeshGrpcAuthStackTests (T5): a no-bearer or wrong-bearer call to
DeploymentArtifactService.Fetch, TelemetryStreamService.Subscribe and
NodeCommandService.Execute fails with the INTERCEPTOR's detail string
("Config-serve authentication failed.", "Telemetry stream authentication
failed.", "Node command authentication failed."), asserted alongside the
status code rather than in place of it - the vacuity trap the plan calls out
(ConfigServeAuthInterceptor throws Unauthenticated, and Grpc.Net.Client can
map an HTTP 401 to the same status, so status alone would not discriminate a
broken build).
Verified red-then-green against the T1 (pre-AllowAnonymous) mapper: all 6 new
theory cases fail there with StatusCode.Internal ("HTTP/2 server reset the
stream, PROTOCOL_ERROR") instead of Unauthenticated/PermissionDenied - the
cookie challenge breaking the h2c stream before any gRPC trailers are
written, never a clean auth denial. That is the exact signature the live
gate (T10) should grep for; recorded in the class remarks.
Joseph Doherty